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Next: <a href="Miscellaneous-Types.html#Miscellaneous-Types" accesskey="n" rel="next">Miscellaneous Types</a>, Up: <a href="Types.html#Types" accesskey="u" rel="up">Types</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Symbol-Types-Index.html#Symbol-Types-Index" title="Index" rel="index">Index</a>]</p>
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<a name="Builtin-Types-1"></a>
<h3 class="section">5.1 Builtin Types</h3>

<p>Certain types are built in (<code>int</code>, <code>short</code>, <code>void</code>,
<code>float</code>, etc.); the debugger recognizes these types and knows how
to handle them.  Thus, don&rsquo;t be surprised if some of the following ways
of specifying builtin types do not specify everything that a debugger
would need to know about the type&mdash;in some cases they merely specify
enough information to distinguish the type from other types.
</p>
<p>The traditional way to define builtin types is convoluted, so new ways
have been invented to describe them.  Sun&rsquo;s <code>acc</code> uses special
builtin type descriptors (&lsquo;<samp>b</samp>&rsquo; and &lsquo;<samp>R</samp>&rsquo;), and IBM uses negative
type numbers.  GDB accepts all three ways, as of version 4.8; dbx just
accepts the traditional builtin types and perhaps one of the other two
formats.  The following sections describe each of these formats.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="Traditional-Builtin-Types.html#Traditional-Builtin-Types" accesskey="1">Traditional Builtin Types</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Put on your seat belts and prepare for kludgery
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<tr><td align="left" valign="top">&bull; <a href="Builtin-Type-Descriptors.html#Builtin-Type-Descriptors" accesskey="2">Builtin Type Descriptors</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Builtin types with special type descriptors
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<tr><td align="left" valign="top">&bull; <a href="Negative-Type-Numbers.html#Negative-Type-Numbers" accesskey="3">Negative Type Numbers</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Builtin types using negative type numbers
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